Cutting and grooving machine



p 3, 1932-, r E. B. BINFORD CUTTING AND GROOVING MACHINE Filed Feb. 14,1950 2 Sheets-Sheet 1 g; A Q INVENTOR.

ATT NEY.

t there m- 35 f-romithe line.8i3 on Fig. 11.

Patented Sept. 13, 1932 um'rro STATES PATENT orHcEff EDWIN 'B'. ransom),or BEVERLY HILLS, cnmnonnm, ASSIGNOR or ONE-HALF so CONTINENTAL BUILDINGZSPEG'IALEIES, me, or LOS .eNGELEs, .eamromrm' evrrrmesnv enemas MACHINEApplication filegljlehriiarv 14, 1930. serial No. 428,420:

My invention relates to cutting and grooving machines, .and moreparticularly .to a machine which is specially designed and constructedfor operating cutting wheels to be moved into and away from' thvworkfandmore particularly designed for use in cutting and grooving and shapingcomposition material which is very hard andfwhen cutror grooved createsa considerable amount of The machine is particularly designed -forcutting and grooving and shaping the surface-ofsahard board or sheetofcomposit'ienmaterial known as Zen-itherm and which "is so hard that asaw will not stand up under the severity of the work, and instead of using a saw for this type of material, a eutti-ng wheel or disc ofcarbor-undu-m or the like which'ca-n be :run at "high speed 'andwill outinto and through the surface of these sheets 25 into corners and aglesas a surrtace finishing.

V In order to explain my invention, 1 have illustrated lone practicalembodiment thereof on the-.accomp anyi-ng :twosheetsof drawings,

. whichlwill IlOWadGSCIdbB.

Figure 1 is a :side elevation of @a' machine embodying my invention;

Figure '2 is an end elevation :thereot taken from the :line:2-=:2 ofFig.1:;.-and

Figure 3 isa top plan view thereoi, taken Referring in detail to thed'rawings, ,'-I have showna supporting table having the zlegse, e, andthe top .5, for supporting the workw, with aneXtensiOn to one side anddesignated 5', with supporting braces, Leas at 6, whereby the extensioncan belletrdown out of th way when not jin use. At "the rear end of thestructure are g-upr'ight supporting 'hracketsffl, 7, andat the forwardend is a laterally extendingyoke 8, to give clearance'inthe plane of thetableor topx5. Mounted uponthe brackets'fY, 7 and yoke 8 are two tit- 1.9 and 10, supported on i beams 11,11, as seen in Figs. 1 and 2, thetrack '9 beingshown of .1

inverted V-form, while the track 10 is flat or rail form, as shown.

Mounted to move back and forthupon tracks '9 and '10, is a.carrier,"designatedjas a whole '6, and including two rear wheels' l2and 13, on axle 14, andtwo front wheels l5 and "1-6, on shaft 17, with ajointedsupport ing frame therebetween made up of a su'p porting-platform18, supported on the rear shaft 14:, by means of two brackets 1'9 and'20, on the top of which brackets is a supporting platformQfl, and bytwo supporting arms and 23, pivota'lly mounted on the frontfaxle 17' andat their upper ends having a shaft 24s,.and' to which the forwardend of-the plat} form 18 pivota'lly connected andsu orted. At one side of thesupporting platform 18 is a downwardly and forwar ly extending arm 25,with a second similar arm 26 between the tracks9 and'lO, and in thelower endsof .thesejarms .or extensions of the supporting platform is apower shaftZT, in the bearings 28,, 28, on the outer end of which shaft27 is cutterwheel29. At the opposite endfof said power shaft'is' adriving pulley3Q.'- .Said carrier is yieldingly supported with its jointOrbearing shaft 24 raised, asshown lin f urlllines in Fig. 1, by meansofaleaf spring 31, oneend of which is supported on brackets 32, 32, onthe rear axle or, shaftf 1 4, I

and at its forward end said spring isjsup;

ported on an arm33, pivotally mounted on the for-ward axle 17. Themiddleof the spring is provided with a suspending 'buckle 134:, by meansofwhichit is adjustab'ly connected to said supporting platform, as at34. *Thus by means of this spring and its-connections, the supportingplatform, with "its arn i ex tensions 25 and 26, and thecutter'wheel-27, is

y'ieldingly supported in itsra'ised or normal position, asseen in Fig."1.

jecting upwardly from the platform 18, as

seen'in Fig. 1, whereby as said operating rod 35 is turned by its handle37, through said cable,rsaid supporting table and the mechanismsupported thereon are moved downwardly to move the cutter wheel 29 to'the' Work, as indicated. in light broken lines,- Fig. 1. When released,the spring raisessaid platform and the cutter wheel away from the work.As a means for hold-ing said-platform in its down position, said rod isprovided 'with a sleeve 40, having a prong-'41 thereon,-

adapted to latch witha latch hook 42, pivotally mounted at 43, asshownin Fig.2, so

that when said shaft 35 is turned to theleft j j i j V 1 W combination,a supporting, track, a carrler mountedto move. onsaid track, a .cuttlng;

until said prong 41 is caught by said hook or latch 42, the parts willbe held until the latch 42 is released'and the shaft 35 allowed to. re

turn. Atriprfinger 44 is secured at 45 in the path of travel of saidlatch hook 42,'so that -.rect drive is shown.

when said carrier reaches a rearward positlon, the lower end of sad-latch hook engages said finger 44 and 1s automat1cally releasedthereby and'said carrier is allowed to rise under the tension of itssupporting spring 31.. Said trip finger 44 is adjustable. The power foroperating the cutter wheel is shown as an'electric motor, designated 46,mounted on the supporting platform 18 with its shaft 47 extended at bothends and provided with driving pulleys 48 and 49, of triple form, with atriple belt 50 from the pulley 49 to the driving pulley 30, on the shaft27, which carries the cutter wheel 29.. This di- If a slower driveconnection is desired, as when a saw is .tobe used, then pulley 48 isconnected with a larger pulley 51, on the end of a sh'aft52, mounted onthe supporting table 18, and carrying at its opposite end a small pulley53, and this which constitutes'the work WV causes a considerable dust'asthe cutter wheel is forced through it, a hood 54 is mounted over thecutter wheel 29, and adjustably held in place by means of a bracketarrangement 55, clear .fromflFigQ2. Said hood is connected by means of apipe 56 with a dust collecting box 57, of the vacuum type, and withwhich is air as it is sucked into the dust collectoiy the air beingdischarged from the blower in'the usual manner. Thecollected dust matteris removed from the discharge end of the collec- I l Thus I have,provided a simple, practical f and 'eas'ilyoper ated machine for cuttingand grooving sheets of material, and particularly' c'omposition which ishard and where cutter wheels madeof cm-b01-u11du1n,:0r other likeim'ateria'l, is-used for cutting hard'substances.

The'carrier is easily moved by hand back and forth upon the tracks andthe supporting platform 7 and the operating mechanismsthereonareeasilymoved to and from the work.

Iclaimz' 1, Ina cutting and grooving machine,fin

wheel carried by said ca rrier with driving connections forv driving thesame, power means for driving said cutting wheel through saidconnections, said carrier being jointed and adapted at its joint to beraised and lowered' tomove said ecutter wheel to and from r the work, aspring normally holdingfsaid -carrienin'itsraised position, and meansfor manually moving said carrier joint down} Wardly to controltheposi-tion of'said cutter wheel. 7 Y r r 2.,In a cutting and groovingmachina in combination, a supportingtrack, a jointed carrier moving uponsaidtrack with its oint intermediate its ends, spring, means holdingsaid joint in a raised position, a cutter wheel on said carrier andraised: with said joint away from-the work, means for manually movingsaid joint and said cutter wheel down to bring the cutter wheel intoengagement with thework, .latchme'ans for holding said parts'in the downposition, means for auto-. mat'ically releasing them at .a predeterminedposition to be raised to their up position, and power meansfordrivinglsaid cutter wheel.

3. In a machine of the oharacter referred ing wheels at its-forward andrearwardends to run on said-track, said carrier having a ointed frame,with its joint intermediate its oppositeer' ds and normally above thelevel ;of its wheel axes, a springyieldingly holding said jointed framein its up position, a cutterwheel carried'on said jointed'frame andnormally projecting below said'track and adapted to be moved'down to thework, and

means "for; manually moving said carrier :to, in combination with atrack, a carrier liav means with Connections for driving said outterwheel.

4. In a machine of the character referred to, in combination with atrack, a carrier having wheels at its opposite ends to run on saidtrack, said carrier having a jointed frame normally raised at the joint,a spring supporting said frame in its raised position so. that it can bemoved down at its joint to an operating position, a cutter wheelcarrie'd'by said frame and moved therewith and adapted to be moveddownwardly to the work by moving the joint of said frame downwardly,means for manually moving said frame downwardly to move said cutterwheel, power means connected with said cutter wheel for driving thesame, latch means a for holding said frame and cutter wheel in operatingposition during its travelon said track, and means for releasing thesame.

5. In a machine of the character referred to, in combination with asupporting frame and track, a carrier moving on said track,

said carrier having a part yieldingly sup-' ported in a raised andinoperative position, a

said part carrying acutter wheel,power means mounted upon and movingwith said carrier and operatively connected for driving said cutterwheel, means for manually moving said part and cutter wheel to the work,latch means for holding said cutter wheel and part in the operativeposition, and means for auto-V saidcutter wheel, manually operable meansfor moving said part and said cutter wheel 1 to said work, latch meansholding said out ter wheel to the work, means automatically releasingsaid latch means at a predetermined for gathering the dust madethereby,

Signed at Los Angeles, Los AngelesCounty, California, this 8th dayofFebruary, 1930," EDWIN B.-BINFORD. I

i 7 position, and means over said cutter wheel matically releasing saidpart and cutter wheel to permit it to be raised at a predeterminedposition. i I

6. In a machine of the character referred to, in combination with asupporting frame and track, a carrier moving on said track, a partmovably and yieldingly held on said carrier and supporting a cutterwheel, power means operatively connected with said cutter wheel fordriving the same, means for manu- 7. In a machine of thecharacterreferred to, in combination with a supporting track, a carrier movingthereon andhaving wheels in front and in the rear and a jointedframeconnecting said front and rear wheels, aspring yieldingly suspending thejointed frame and moving therewith, a part on said frame mov-V abletherewith and extending downwardly below said track, a cutter wheelcarried by said part and movable therewith to and from the work, powermeans connected for driving

